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Finding the Third Proportional to 1,970.25 and 4,203.75

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Solution

The third proportional to 1,970.25 and 4,203.75 is: 8,969.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.25 : 4,203.75 = 4,203.75 : x
  2. Step 2: Convert to fraction form
    1,970.25/4,203.75 = 4,203.75/x
  3. Step 3: Cross multiply
    1,970.25x = 4,203.75 × 4,203.75
  4. Step 4: Simplify right side
    1,970.25x = 17,671,514.06
  5. Step 5: Solve for x
    x = 17,671,514.06/1,970.25
  6. Step 6: Final answer
    x = 8,969.17

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.